John David Douma

Title: The Innovations of John David Douma

Introduction

John David Douma is an accomplished inventor based in Beverly Hills, Michigan. He holds two patents that showcase his expertise in the field of power steering systems. His innovative designs have contributed significantly to the automotive industry.

Latest Patents

One of Douma's latest patents is the "Yoke Assembly for a Power Steering Apparatus." This invention features a rack and pinion steering system that includes a rack supported within a housing engaging a pinion gear. The yoke assembly guides the rack and maintains its engagement with the pinion during operation. A retainer member secures a yoke plug in position and seals the assembly, protecting internal components from water and contaminants. Another notable patent is the "Self-Sealing Yoke Assembly for a Steering Apparatus." This design incorporates a cylindrical sleeve with a tapered outer seal surface. The yoke assembly, received by the sleeve, ensures proper guidance of the rack while maintaining engagement with the pinion. The compliant annular seal member provides a self-sealing interface, further safeguarding the internal components from external elements.

Career Highlights

Throughout his career, John David Douma has worked with prominent companies in the automotive sector, including Ford Motor Company Limited and Ford Global Technologies, LLC. His contributions to these organizations have been instrumental in advancing steering technology.

Collaborations

Douma has collaborated with notable professionals in his field, including Madhu Nambiar and John Francis Laidlaw. These partnerships have fostered innovation and development in automotive engineering.

Conclusion

John David Douma's contributions to the field of power steering systems through his patents reflect his dedication to innovation and engineering excellence. His work continues to influence the automotive industry positively.